1(a) A 4 kg object is travelling at u = 3 m/s when a constant unbalanced (net) force of magnitude 10 N is applied in the opposite direction of its motion. Apply the Work-Energy Theorem to find the displacements of the object at the moments at which its velocity becomes (i) u/2 and (ii) zero, respectively. (b) A 4 kg object is travelling at u = 3 m/s when a constant unbalanced (net) force of magnitude 10 N is applied in the opposite direction of its motion. Applying Newton’s Law and kinematic equations, find the acceleration, the times and displacements when the object’s velocity is (i) u/2 and (ii) zero, respectively (c) If the force of 10 N continues to act on the object after its velocity becomes zero, find the velocity of the object when it is back to where it was at the beginning of its trip.
1(a) A 4 kg object is travelling at u = 3 m/s when a constant unbalanced (net) force of magnitude 10 N is applied in the opposite direction of its motion. Apply the Work-Energy Theorem to find the displacements of the object at the moments at which its velocity becomes (i) u/2 and (ii) zero, respectively.
(b) A 4 kg object is travelling at u = 3 m/s when a constant unbalanced (net) force of magnitude 10 N is applied in the opposite direction of its motion. Applying Newton’s Law and
(c) If the force of 10 N continues to act on the object after its velocity becomes zero, find the velocity of the object when it is back to where it was at the beginning of its trip.
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